AEV 3.5" & 4.5" DualSport SC Suspension Lift Kit; Wrangler JK

The BEST OEM Quality, Ride, and Performance for your JK!

AEV's DualSport Suspension Systems have taken off-road suspension engineering to the next level. At AEV, suspension development is about more than just adding lift height, articulation, or flashy-looking components. It's about bringing OE-level suspension engineering to the aftermarket to create a true do-anything "dualsport" suspension - one that is both extremely capable off-road, while offering unparalleled on-road performance and handling.

As with all of AEV's expedition-ready suspension systems, the DualSport Suspension for the Jeep Wrangler JK is FMVSS No. 126 Compliant. FMVSS No. 126 is a rigorous standard set by the National Highway Traffic Safety Administration (NHTSA) that tests new electronic stability control (ESC) systems by subjecting it to various maneuvers designed to evaluate its effectiveness in preventing loss of control and skidding, including evasive lane-changing maneuvers at highways speeds.

To achieve this, AEV relied on factory engineering methodology. We started with the JK's control-arms, track-arms and steering. The geometry of each component was optimized to accommodate the new lifted posture of the JK. It may surprise people to learn that proper geometry is where AEV's Dualsport Suspensions get much of their tremendous cornering and braking characteristics. The fact is, when the geometry is right, the springs and shocks don't have to compensate for poor performance in these areas.

Once the geometry was correct, we turned our attention to the springs, again relying on OE methods, which in the case of springs means frequency tuning.  Frequency-tuned coil springs share harmonious oscillation characteristics that allow them to work as a matched set, front and rear.  The benefit is that they help to keep the JK balanced and in contact with the road, even when driven at high speed over rough surfaces.

After the springs were tuned, the next step is shock tuning. Rather than use an off-the-shelf shock tune, we partner with the engineers at Bilstein to develop a proprietary tune matched to our unique suspension. Together we spent days at a proving grounds facility testing numerous valving combinations in an array of simulated driving conditions. Thanks to the previous optimization of AEV's geometry and coil springs, it allows us to tune the shocks with a focus on damping suspension movement - rather than on trying to mask unwanted handling problems resulting from poor geometry or spring tuning.

Overall, no matter which DualSport Suspension System you choose, no matter where you drive it or how you load it, you can count on your AEV JK 3.5"-4.5" DualSport SC Suspension Lift to remain comfortable, balanced, and ready to explore.

Key Features

• Expedition-Ready / Daily-Driven Practical. More so than any of its predecessors, the JK Wrangler is not just a trail-mastering off-road specialist, it's a truly "street able" on-road transport too. The AEV DualSport enhances the JK to raise its performance in both arenas.
• Tuned Vehicle Dynamics. The DualSport system has been thoroughly tuned for impeccable behavior in every situation you might put it in - and especially the ones you didn't intend to.
• Complete. AEV DualSport JK systems are truly stand-alone packages that include everything needed to elevate your JK properly, including shocks.

Actual lift height may vary depending on vehicle weight.

IMPORTANT NOTE: For 4.5" Lift on 2012+ JK Unlimited

The 3.6L Pentastar power plant on the 2012-2018 JKs changed the positioning of the stock Y-Pipe. When a lift kit is installed the clearance between the exhaust and the driveshaft is dramatically reduced and the risk of contact damage is greatly increased, especially when traveling in rough off-road terrain. We recommend an aFe y-pipe or exhaust spacer to counteract this.

ANOTHER IMPORTANT NOTE: For 3.5"+ Lift on 2012+ JK Unlimited

If you have a 3.5" lift or taller, we highly recommend upgrading your rear swaybar as well. This sway bar by Hellwig Products is a shop favorite. It makes you more confident and more in control when taking turns or in the event that you have to make an emergency brake and swerve. It also removes all of the body sway you might experience when passing or getting passed by semi trucks/tractor trailers on the highway in your Jeep. It improves your ride in town, on the highway, and doesn't limit your Jeeps off-road capability when combined with sway bar disconnects.